<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
       <!-- 性别：{{ sex | filterSex }}

       性别：{{ 0 | filterSex }}
       性别：{{ 1 | filterSex }} -->
       <p>
           价格 : {{ price | filterPrice }}
       </p>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
    <script>
        const app = new Vue({
            el: "#app",
            data: {
                val: "",
                sex: 1,
                price: 100
            },
            filters: {
                filterSex(val) {
                    return val === 0? '男': '女'
                },
                filterPrice(val) {
                    return '￥' + val + '.99'
                }
            }
        })


    </script>
</body>

</html>